Fabrication and characterization of porous mullite coating on porous silicon carbide support

被引：3

作者：

Wang, N ^{[1
]}

Yang, XZ ^{[1
]}

Li, JB ^{[1
]}

Lin, H ^{[1
]}

Chi, B ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

HIGH-PERFORMANCE CERAMICS III, PTS 1 AND 2 | 2005年 / 280-283卷

关键词：

porous; mullite coating; sol-gel; dip-coating; OXIDATION BEHAVIOR; TEMPERATURE;

D O I：

10.4028/www.scientific.net/KEM.280-283.1301

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Mullite powders of stoichiometric composition were synthesized by sol-gel process with TEOS and Al(NO3)(3).9H(2)O as silicon and aluminum source. Homogeneous mullite powders were used as the starting materials to prepare the porous mullite coating on the porous silicon carbide support by repeated dip-coating method. XRD analysis revealed that the mullite precursor gels almost completely transformed to orthorhombic crystalline mullite at 1200degreesC. The average pore diameter and porosity of the porous mullite coating were about 4.5mum and 52.3%, respectively.

引用

页码：1301 / 1304

页数：4

共 9 条

[1] Low temperature pressureless sintering of sol-gel derived mullite [J].